https://koenigsberg.de/wp-content/themes/kbg-1.3/src/style-helper.js?ver=7.1.2

1var $ = jQuery;
2
3(function ($) {
4  $(function () {
5    /* -----------------------------------------------------------
6       Konstanten & Startwerte
7       ----------------------------------------------------------- */
8    const root            = document.documentElement;
9    const CONTRAST_KEY    = 'sh-contrast-mode';
10    const TEXTSIZE_KEY    = 'sh-text-large';
11    /* -----------------------------------------------------------
12       Toggle-Funktionen
13       ----------------------------------------------------------- */
14    function setContrast(on) {
15      const $el = $('.style-helper[data-type="contrast"]');
16      $el.find('.style-switch').toggleClass('style-switch-active', on);
17      $el.attr('aria-pressed', on ? 'true' : 'false');
18      document.documentElement.classList.toggle('sh-contrast-mode', on);
19      localStorage.setItem(CONTRAST_KEY, on ? '1' : '0');
20    }
21    function setTextSize(on) {
22      const $el = $('.style-helper[data-type="textsize"]');
23      $el.find('.style-switch').toggleClass('style-switch-active', on);
24      $el.attr('aria-pressed', on ? 'true' : 'false');
25      document.documentElement.classList.toggle('sh-text-large', on);
26      localStorage.setItem(TEXTSIZE_KEY, on ? '1' : '0');
27    }
28    /* -----------------------------------------------------------
29       Status beim Laden wiederherstellen
30       ----------------------------------------------------------- */
31    setContrast(localStorage.getItem(CONTRAST_KEY) === '1');
32    setTextSize(localStorage.getItem(TEXTSIZE_KEY) === '1');
33    /* -----------------------------------------------------------
34       Delegierter Click-Handler (beide Buttons)
35       ----------------------------------------------------------- */
36    $(document).on('click', '.style-helper', function () {
37      const type = $(this).data('type');
38      if (type === 'contrast') {
39        const next = localStorage.getItem(CONTRAST_KEY) !== '1';
40        setContrast(next);
41
42      } else if (type === 'textsize') {
43        const next = localStorage.getItem(TEXTSIZE_KEY) !== '1';
44        setTextSize(next);
45      }
46    });
47  });
48})(jQuery);